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add new django charfield example
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‎content/pages/examples/django/django-code-examples.markdown‎

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Code from django-filer can be found on these pages:
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* [django.conf settings](/django-conf-settings-examples.html)
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* [django.contrib.admin](/django-contrib-admin.html)
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* [django.contrib.admin](/django-contrib-admin-examples.html)
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* [django.core.management.base BaseCommand](/django-core-management-base-basecommand-examples.html)
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### django-push-notifications
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[django-push-notifications](https://github.com/jazzband/django-push-notifications)
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is a [Django](/django.html) app for storing and interacting with
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push notification services such as
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[Google's Firebase Cloud Messaging](https://firebase.google.com/docs/cloud-messaging/)
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and
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[Apple Notifications](https://developer.apple.com/notifications/).
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The django-push-notification project's source code is available
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open source under the
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[MIT license](https://github.com/jazzband/django-push-notifications/blob/master/LICENSE).
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* [django.db.models Model](/django-db-models-model-examples.html)
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* [django.db.models BooleanField](/django-db-models-booleanfield-examples.html)
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* [django.db.models CharField](/django-db-models-charfield-examples.html)
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### django-oscar
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[django-oscar](https://github.com/django-oscar/django-oscar/)
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([project website](http://oscarcommerce.com/))

‎content/pages/examples/django/django-db-models-booleanfield.markdown‎

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title: django.db.models BooleanField Example Code
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category: page
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slug: django-db-models-booleanfield-examples
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sortorder: 50103
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toc: False
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sidebartitle: django.db.models BooleanField
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meta: Python code examples for the BooleanField class used with the Django ORM to create a Boolean column in a database.
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[BooleanField](https://github.com/django/django/blob/master/django/db/models/fields/__init__.py)
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is a Python class within [Django](/django.html) that maps Python code to
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a [relational database](/databases.html) Boolean column through the
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[Django object-relational-mapper (ORM)](/django-orm.html).
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[Django](/django.html)'s documentation explains more about
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[BooleanField](https://docs.djangoproject.com/en/dev/ref/models/fields/#django.db.models.TextField)
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and all of the other ORM column fields.
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Note that `BooleanField` is defined within the
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[django.db.models.fields](https://github.com/django/django/blob/master/django/db/models/fields/__init__.py)
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module but is typically referenced from
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[django.db.models](https://github.com/django/django/tree/master/django/db/models)
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rather than including the `fields` module reference.
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## Example 1 from django-push-notifications
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[django-push-notifications](https://github.com/jazzband/django-push-notifications)
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is a [Django](/django.html) app for storing and interacting with
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push notification services such as
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[Google's Firebase Cloud Messaging](https://firebase.google.com/docs/cloud-messaging/)
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and
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[Apple Notifications](https://developer.apple.com/notifications/).
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The django-push-notification project's source code is available
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open source under the
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[MIT license](https://github.com/jazzband/django-push-notifications/blob/master/LICENSE).
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[**django-push-notifications / push_notifications / models.py**](https://github.com/jazzband/django-push-notifications/blob/master/push_notifications/models.py)
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```python
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from __future__ import unicode_literals
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~~from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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from django.utils.translation import ugettext_lazy as _
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from .fields import HexIntegerField
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from .settings import PUSH_NOTIFICATIONS_SETTINGS as SETTINGS
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CLOUD_MESSAGE_TYPES = (
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("FCM", "Firebase Cloud Message"),
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("GCM", "Google Cloud Message"),
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)
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BROWSER_TYPES = (
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("CHROME", "Chrome"),
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("FIREFOX", "Firefox"),
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("OPERA", "Opera"),
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)
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@python_2_unicode_compatible
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class Device(models.Model):
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name = models.CharField(max_length=255, verbose_name=_("Name"),
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blank=True, null=True)
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~~ active = models.BooleanField(
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~~ verbose_name=_("Is active"), default=True,
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~~ help_text=_("Inactive devices will not be sent notifications")
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~~ )
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user = models.ForeignKey(
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SETTINGS["USER_MODEL"], blank=True, null=True,
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on_delete=models.CASCADE
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)
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date_created = models.DateTimeField(
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verbose_name=_("Creation date"), auto_now_add=True, null=True
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)
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application_id = models.CharField(
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max_length=64, verbose_name=_("Application ID"),
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help_text=_(
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"Opaque application identity, should be filled in for"
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" multiple key/certificate access"
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),
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blank=True, null=True
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)
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## source file continues here without further BooleanField examples
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```

‎content/pages/examples/django/django-db-models-charfield.markdown‎

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## source file continues from here without further CharField examples
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```
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### Example 2 from django-push-notifications
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[django-push-notifications](https://github.com/jazzband/django-push-notifications)
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is a [Django](/django.html) app for storing and interacting with
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push notification services such as
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[Google's Firebase Cloud Messaging](https://firebase.google.com/docs/cloud-messaging/)
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and
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[Apple Notifications](https://developer.apple.com/notifications/).
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The django-push-notification project's source code is available
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open source under the
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[MIT license](https://github.com/jazzband/django-push-notifications/blob/master/LICENSE).
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[**django-push-notifications / push_notifications / models.py**](https://github.com/jazzband/django-push-notifications/blob/master/push_notifications/models.py)
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```python
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from __future__ import unicode_literals
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~~from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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from django.utils.translation import ugettext_lazy as _
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from .fields import HexIntegerField
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from .settings import PUSH_NOTIFICATIONS_SETTINGS as SETTINGS
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CLOUD_MESSAGE_TYPES = (
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("FCM", "Firebase Cloud Message"),
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("GCM", "Google Cloud Message"),
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)
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BROWSER_TYPES = (
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("CHROME", "Chrome"),
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("FIREFOX", "Firefox"),
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("OPERA", "Opera"),
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)
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@python_2_unicode_compatible
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class Device(models.Model):
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~~ name = models.CharField(max_length=255, verbose_name=_("Name"),
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~~ blank=True, null=True)
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active = models.BooleanField(
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verbose_name=_("Is active"), default=True,
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help_text=_("Inactive devices will not be sent notifications")
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)
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user = models.ForeignKey(
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SETTINGS["USER_MODEL"], blank=True, null=True,
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on_delete=models.CASCADE
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)
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date_created = models.DateTimeField(
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verbose_name=_("Creation date"), auto_now_add=True, null=True
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)
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~~ application_id = models.CharField(
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~~ max_length=64, verbose_name=_("Application ID"),
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~~ help_text=_(
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~~ "Opaque application identity, should be filled in for"
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~~ " multiple key/certificate access"
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~~ ),
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~~ blank=True, null=True
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~~ )
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class Meta:
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abstract = True
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def __str__(self):
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return (
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self.name or
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str(self.device_id or "") or
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"%s for %s" % (self.__class__.__name__,
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self.user or "unknown user")
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)
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## source file continues from here with a few other simple CharField examples
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```

‎theme/templates/table-of-contents.html‎

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<h4 class="bp"><a href="/django-core-mail-send-mail-examples.html">django.core.mail.send_mail</a></h4>
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<h4 class="bp"><a href="/django-core-mail-messages-emailmessage-examples.html">django.core.mail.messages EmailMessage</a></h4>
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<h4 class="bp"><a href="/django-core-management-base-basecommand-examples.html">django.core.management.base BaseCommand</a></h4>
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<h4 class="bp"><a href="/django-db-models-booleanfield-examples.html">django.db.models BooleanField</a></h4>
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<h4 class="bp"><a href="/django-db-models-charfield-examples.html">django.db.models CharField</a></h4>
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<h4 class="bp"><a href="/django-db-models-model-examples.html">django.db.models Model</a></h4>
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<h4 class="bp"><a href="/django-db-models-textfield-examples.html">django.db.models TextField</a></h4>

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